Improvement in pumps



nrrnn STATES PATENT Erica.

SAMUEL VANCE, OF NEWBURYPORT, MASSACHUSETTS.

IMPROVEM ENT IN PUMPS.

Specification forming part of Letters Patent No. 52,346, dated January30,1866.

To all whom it may concern:

Be it known that I, SAMUEL VANCE, of Newburyport,in the county of Essexand State of Massachusetts, have invented a new and Improved Pump 5 andI do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, 7

reference being had to the accompanying drawing, forming part of thisspecification.

The drawing represents a vertical section of my invention.

This invention relates to a new and useful improvement in that class ofpumps which are provided with glass cylinders-and are designed to besubmerged in the bottom of the well or reservoir from which the water isto be drawn or raised. Glass is a superior material for the cylinders ofpumps of this class, as it is not affected by corrosion or rust, andforms a smooth hard surface for the piston to work in contact with, sothat it will not be injured by wear, at least not in a very long periodof time. The difficulty, however, attending this class of pumps has beenthe connecting of the heads to the cylinder so as to be water-tight, andat the same time admit of the former being readily detached from thelatter when the piston requires to be withdrawn from the cylinder forrepairs, and the ready attachment of the heads to the cylinder when thepiston is repaired, as well as the firm connection of the glass cylinderwith the pump-stock. This difiiculty, itis believed, has been fullyobviated by my invention, which consists in securing the heads to theglass cylinder and the latter to the pump-stock by means of a yoke orclamp and a screw, arranged in the manner substantially as hereinafterset forth.

A represents a pump-stock, provided at its upper end with a nozzle, B,through which the water escapes, and also provided with a brake orhandle, O, to which the piston-rod D is attached. These parts may beconstructed and arranged as usual, or in any proper way.

E represents the glass cylinder in which the piston F works. The upperend of this cylinder is fitted in a socket, G, secured on the lower endof the pump-stock, and the lower end of said cylinder is fitted in asimilar socket, G. of iron galvanized or otherwise coated with zinc, toprevent oxidation, or some other metal may be used which will not beaffected by corrosion or rust.

The lower socket, G, is perforated, and provided at its inner side witha check-valve, a, and the upper socket, G, is tubular to admit of thepump stock communicating with said cylinder, as shown clearly in thedrawing.

The upper socket, G, is firmly secured to the pump-stock A, and it isprovided with a shoulder, b, slightly inclined at its upper surface, forthe ends 0 c of a yoke or clamp, H, to fit or catch over, the lower partof the yoke or clamp extending in semicircular or curved form underneaththe lower socket, G, and having a screw, I, passing through it, whichbears against the center of the under side of the socket G, and byscrewing up which the sockets are made to bind or press firmly on theends of the glass cylinder, and the latter also firmly secured to thepump-stock.

Packing d is interposed between the ends of the glass cylinder and thesockets in order to prevent leakage. The piston F may be of usual or anyproper construction. Thus by this simple means the cylinder may bereadily disconnected from its sockets or heads, and also readilydetached from the pumpstock, and the cylinder fitted in the sockets orheads and tight joints formed without any difficulty whatever and by anyperson of ordinary ability.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The securing of the glass cylinder E to the socketsor heads G G, and to the pump-stock A by means of the yoke or clamp Hand screw 1, arranged in the manner substantially as and for-the purposeherein set forth.

The above specification of my invention signed by me this 11th day ofOctober, 1865.

SAML. VANCE.

Witnesses M. M. LIVINGSTON, O. L. ToPLIFF.

These sockets may be constructed

